Fixed assemblies and switching elements including them

Abstract

A fixed assembly according to an embodiment of the present invention includes a heat dissipation member having a base on one side on which a switching element is arranged and a plurality of heat dissipation pins protruding from the base on the other side; and a fixed member inserted from one side to the other in the direction of the heat dissipation member to fix the switching element and the heat dissipation member, wherein the fixed member has a clip shape that presses the switching element toward the heat dissipation member.

Description

Technical Field

[0001] The present invention relates to a fixing assembly and a switching element including the same.

Background Art

[0002] Various electric field components constituting an electronic product are mounted on a printed circuit board on which a circuit pattern is printed. Such an electric field component is provided with a switching element for applying power to other electric field components. The switching element is fixed by a fixing assembly.

[0003] The switching element must be stably fixed to the substrate for signal transmission and electrical connection. Further, the switching element is an electronic component that generates heat and needs to be fixed by a structure with high heat dissipation efficiency.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The technical problem to be solved by the present invention is to provide a fixing assembly and a switching element including the same.

Means for Solving the Problems

[0005] To solve the above technical problem, a fixing assembly according to an embodiment of the present invention includes a heat dissipation member including a base on one surface of which a switching element is disposed and a plurality of heat dissipation pins protruding on the other surface; and a fixing member inserted from one side to the other side of the heat dissipation member to fix the switching element and the heat dissipation member, the fixing member having a clip shape that presses the switching element in the direction of the heat dissipation member.

[0006] An insulating layer may be disposed between the switching element and the heat dissipation member, and an insulating member disposed on the other side of the heat dissipation member may be included.

[0007] The base of the heat dissipation member includes a first step and a second step that protrude outward, and the insulating layer can be positioned between the first step and the second step.

[0008] The fixing member includes a first region in which a first hole is formed, and the heat dissipation member has a second hole formed at a position corresponding to the first hole of the fixing member, and a screw can be arranged to penetrate the first hole and the second hole.

[0009] The heat dissipation member may include two protrusions projecting in a lateral direction from the first surface on which the first region of the fixing member is positioned, and a groove formed between the two protrusions.

[0010] The first region of the fixing member may include a first portion having a first length, a second portion having a second length smaller than the first length, and a locking portion between the first portion and the second portion that contacts one surface of the two protrusions.

[0011] The second length of the second portion can be formed to correspond to the groove of the heat dissipation member.

[0012] The fixing member may include a first region in which a first hole is formed, a second region extending from the first region in the direction of the heat dissipation pin, a third region extending from the second region and curved, a fourth region extending from the first region in the direction of the base and curved, a fifth region extending from the fourth region, and a sixth region extending from the fifth region.

[0013] At least a portion of the fifth and sixth regions of the fixed member can come into contact with the switching element.

[0014] The second region of the fixing member may include a hole shape. [Effects of the Invention]

[0015] According to this embodiment, the switching element can be stably fixed on the substrate, and the heat dissipation effect can be enhanced. Also, the assembly convenience can be ensured through the structure inserted and fixed from one direction.

Brief Description of the Drawings

[0016] [Figure 1] It is a perspective view of the fixing assembly according to this embodiment.

[0017] [Figure 2] It is an exploded perspective view of the fixing assembly according to this embodiment.

[0018] [Figure 3] It is a perspective view of the heat dissipation member and the fixing member of the fixing assembly according to this embodiment.

[0019] [Figure 4] It is a view of the fixing assembly according to this embodiment seen from above.

[0020] [Figure 5] It is a view of the fixing assembly according to this embodiment seen from the side.

Modes for Carrying Out the Invention

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] However, the technical idea of the present invention is not limited to some of the described embodiments, and can be embodied in various different forms. Within the scope of the technical idea of the present invention, one or more of the components between the embodiments can be selectively combined or replaced and used.

[0023] Also, terms (including technical and scientific terms) used in the embodiments of the present invention should be interpreted in the meaning generally understood by those with ordinary knowledge in the technical field to which the present invention pertains, unless specifically defined and described otherwise. Commonly used terms such as those defined in a dictionary should be interpreted in consideration of the meaning in the context described in the present invention.

[0024] In addition, the terms used in this embodiment are for the purpose of explaining the embodiment and do not limit the present invention.

[0025] In this specification, the singular form can also include the plural form unless otherwise specifically stated in the text. When described as "at least one (or one or more) of A and (or) B, C", it can include one or more of all combinations that can be combined with A, B, and C.

[0026] In addition, when explaining the components of this embodiment, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are for distinguishing the components from other components and are not limited by the essence, order, or sequence of the corresponding components by such terms.

[0027] Also, when a certain component is described as "connected", "coupled", or "joined" to another component, that component can include not only the case where it is directly "connected", "coupled", or "joined" to the other component, but also the case where it is "connected", "coupled", or "joined" by another component between that component and the other component.

[0028] Also, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only the case where two components are in direct contact with each other, but also the case where one or more other components are formed or arranged between the two components. Also, when expressed as "above" or "below", it can include not only the upward direction but also the downward direction with respect to one component.

[0029] Figure 1 is a perspective view of the fixed assembly according to this embodiment, Figure 2 is an exploded perspective view of the fixed assembly according to this embodiment, Figure 3 is a perspective view of the heat dissipation member and fixed member of the fixed assembly according to this embodiment, Figure 4 is a top view of the fixed assembly according to this embodiment, and Figure 5 is a side view of the fixed assembly according to this embodiment.

[0030] The fixing assembly according to this embodiment may include a heat dissipation member 20 and a fixing member 40, and may include an insulating layer 30 and an insulating member 50. The fixing assembly may be called a bracket.

[0031] The heat dissipation member 20 may include a base 21 on which a switching element 10 is arranged on one surface. An insulating layer 30 may be arranged on one surface of the base 21. The switching element 10 may be arranged on one surface of the base 21. An insulating layer 30 may be arranged between the base 21 and the switching element 10. The insulating layer 30 may be formed in a sheet shape.

[0032] Multiple heat dissipation pins 22 can be formed protruding from the other surface of the heat dissipation member 20. Multiple heat dissipation pins 22 can protrude from the base 21. Multiple heat dissipation pins 22 can be spaced apart from each other. Multiple heat dissipation pins 22 can be formed parallel to each other. Recesses can be formed between the multiple heat dissipation pins 22. Heat generated from the switching element 10 can be dissipated by increasing the contact area with air through the multiple heat dissipation pins 22. The heat dissipation member 20 can be called a heat sink.

[0033] A step can be formed on one side and the other side of the base 21. The base 21 may include a first step 26 and a second step 27 that protrude outward. The insulating layer 30 can be positioned between the first step 26 and the second step 27. The insulating layer 30 can be supported in position through the step formed in the base 21. The insulating layer 30 can be positioned between the switching element 10 and the heat dissipation member 20 to provide insulation. The insulating layer 30 can be made of a ceramic material. The insulating layer 30 may be called an insulating plate.

[0034] The heat dissipation member 20 may include a first surface on which the first region 42 of the fixing member 40 is positioned. A hole 25 may be formed on the upper surface of the heat dissipation member 20. The hole 25 can be joined by inserting a screw (S). The hole 25 of the heat dissipation member 20 may correspond to a hole 41 of the fixing member 40. The hole 25 of the heat dissipation member 20 and the hole 41 of the fixing member 40 are arranged to overlap, and the screw (S) can be joined by passing through each hole. The hole 25 of the heat dissipation member 20 may be called the first hole, and the hole 41 of the fixing member 40 may be called the second hole.

[0035] The upper surface of the heat dissipation member 20 may include a projection 23 that protrudes upward. The projection 23 can be formed to protrude upward from both sides. The projection 23 may consist of two projections 23 that are spaced apart from each other. A groove for positioning a fixing member 40 may be included between the two projections 23. The projection 23 can act as a stopper for the fixing member 40.

[0036] The other side of the heat dissipation member 20 may include a lead 24 that is inserted and fixed to the substrate 100. The lead 24 can be coupled to the side surface of the heat dissipation member 20 and can be formed to extend downward. The lead 24 can be formed in a "┐" shape.

[0037] The switching element 10 can be an FET element or a diode element. The switching element 10 may include a body and a number of pins extending from the body and connected to the substrate 100. An insulating member 50 may be placed on the lower surface of the body of the switching element 10. The insulating member 50 may be placed between the switching element 10 and the substrate 100.

[0038] The insulating member 50 can be placed between the switching element 10 and the substrate 100 to provide insulation. The insulating member 50 can be made of silicone or rubber. The insulating member 50 can be placed on the other side of the heat dissipation member 20. The insulating member 50 can be placed between the substrate 100 and the base 21. The insulating member 50 can be placed between the base 21 and the lead 24. The insulating member 50 can support the base 21 which is placed on the substrate 100.

[0039] The fixing member 40 can be formed in the shape of a clip. The fixing member 40 may have a clip shape that presses the switching element 10 toward the heat dissipation member 20. The fixing member 40 can be formed to enclose the base 21 of the heat dissipation member 20, the heat dissipation pins 22, and the first surface 28 connecting the base 21 and the heat dissipation pins 22. The fixing member 40 can be inserted from one side of the heat dissipation member 20 toward the other side to fix the switching element 10 and the heat dissipation member 20.

[0040] The fixing member 40 may include a first region 42 in which a hole 41 is formed. The first region 42 may be positioned on the upper surface of the heat dissipation member 20. The first region 42 of the fixing member 40 may include a first portion 42-1 having a first length (L1), a second portion 42-2 having a second length (L2) smaller than the first length (L1), and a locking portion 42-3 that contacts one surface of two protrusions 23 between the first portion 42-1 and the second portion 42-2. This allows the fixing member 40 to be fixed in position on the heat dissipation member 20.

[0041] The fixing member 40 may include a second region 43 extending from the first region 42 in the direction of the heat dissipation pin 22, and a third region 44 extending from the second region 43 and curved. The fixing member 40 may also include a fourth region 45 extending from the first region 42 in the direction of the base 21 and curved, a fifth region 46 extending from the fourth region 45, and a sixth region 47 extending from the fifth region 46. The first to sixth regions 42 to 47 are shown as divisions of a single fixing member 40 for convenience, and the fixing member 40 may include additional regions in addition to the first to sixth regions 42 to 47, and any of the first to sixth regions 42 to 47 may be omitted. The second region 43 and the third region 44 of the fixing member 40 can face the heat dissipation pin 22, and the fourth to sixth regions 45, 46, and 47 can face the switching element 10 or the base 21.

[0042] The second region 43 of the fixing member 40 can extend perpendicularly to the first region 42. The second region 43 may include a hole shape. The heat dissipation pins 22 can be exposed to the outside through the hole shape of the second region 43 to improve heat dissipation efficiency.

[0043] At least a portion of the second region 43 and the third region 44 of the fixing member 40 can contact the heat dissipation pin 22. The second region 43 and the third region 44 of the fixing member 40 may not be able to contact the heat dissipation pin 22. The second region 43 and the third region 44 of the fixing member 40 can be formed to have an obtuse angle. This allows the fixing member 40 to wrap around the outer surface of the heat dissipation member 20, acting as a guide when inserted and facilitating assembly.

[0044] The fourth region 45 of the fixing member 40 can be formed as a curved surface. The fourth region 45 can be formed as a curved shape. The fifth region 46 of the fixing member 40 extends from the fourth region 45 and can contact the switching element 10. The sixth region 47 of the fixing member 40 can be formed to have an obtuse angle with the fifth region 46. This allows the fixing member 40 to act as a guide when it is inserted while wrapping around the outer surface of the heat dissipation member 20, making assembly easier.

[0045] At least a portion of the fifth region 46 and the sixth region 47 of the fixing member 40 can come into contact with the switching element 10. The fifth region 46 and the sixth region 47 of the fixing member 40 may have a region (d) that overlaps with the switching element 10. The fixing member 40 can stably fix the switching element 10 through a seesaw effect via the region (d) that overlaps with the switching element 10.

[0046] Referring to Figure 5, which shows a side view of a fixed assembly according to an embodiment of the present invention, the line connecting the boundary points of the second region 43 and the third region 44 of the fixed member 40 and the boundary points of the fifth region 46 and the sixth region 47 can be formed on a virtual line. The length (H1) of the fixed member 40 from the first region 42 to the second region 43 can be formed to be half the length (H2) from the first region 42 to the substrate 100. The length (H1) of the fixed member 40 from the first region 42 to the boundary point of the fifth region 46 and the sixth region 47 can be formed to be half the length (H2) from the first region 42 to the substrate 100. As a result, the fixed member can more stably fix the switching element and the heat dissipation member.

[0047] Those with ordinary skill in the art related to this embodiment will understand that it can be embodied in modified forms that do not deviate from the essential characteristics described above. Therefore, the disclosed method should be considered in an explanatory rather than restrictive view. The scope of the invention is shown in the claims, not in the foregoing description, and all differences within the same scope should be construed as being included in the invention.

Claims

1. A heat dissipation member including a base on which switching elements are arranged on one side and a plurality of heat dissipation pins that protrude from the other side; and The heat dissipation member includes a fixing member that is inserted from one side to the other and fixes the switching element and the heat dissipation member, The fixing member is a fixing assembly having a clip shape that presses the switching element toward the heat dissipation member.

2. An insulating layer is placed between the switching element and the heat dissipation member. The fixed assembly according to claim 1, further comprising an insulating member disposed on the other side of the heat dissipation member.

3. The base of the heat dissipation member includes a first terminal and a second terminal that protrude outward, The fixing assembly according to claim 2, wherein the insulating layer is disposed between the first step and the second step.

4. The fixing member includes a first region in which a first hole is formed, The heat dissipation member has a second hole formed at a position corresponding to the first hole of the fixing member. The fixing assembly according to claim 1, wherein a screw is arranged to penetrate the first hole and the second hole.

5. The fixing assembly according to claim 4, wherein the heat dissipation member includes two protrusions projecting in a lateral direction from the first surface on which the first region of the fixing member is positioned, and a groove formed between the two protrusions.

6. The fixing assembly according to claim 5, wherein the first region of the fixing member includes a first portion having a first length, a second portion having a second length less than the first length, and a locking portion between the first portion and the second portion that contacts one surface of the two protrusions.

7. The fixing assembly according to claim 6, wherein the second length of the second portion is formed to correspond to the groove of the heat dissipation member.

8. The fixing assembly according to claim 1, wherein the fixing member includes a first region in which a first hole is formed, a second region extending from the first region in the direction of the heat dissipation pin, a third region extending from the second region and curved, a fourth region extending from the first region in the direction of the base and curved, a fifth region extending from the fourth region, and a sixth region extending from the fifth region.

9. The fixing assembly according to claim 8, wherein at least a portion of the fifth region and the sixth region of the fixing member is in contact with the switching element.

10. The fixing assembly according to claim 8, wherein the second region of the fixing member includes a hole shape.

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